Pull AsyncApiFunction out of src/chrome

chrome/browser/extensions/api/sockets_udp/udp_socket_event_dispatcher.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_SOCKETS_UDP_UDP_SOCKET_EVENT_DISPATCHER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SOCKETS_UDP_UDP_SOCKET_EVENT_DISPATCHER_H_
 
 #include "chrome/browser/extensions/api/api_resource_manager.h"
 #include "chrome/browser/extensions/api/sockets_udp/sockets_udp_api.h"
 
+class Profile;
+
 namespace extensions {
 struct Event;
 class ResumableUDPSocket;
 }
 
 namespace extensions {
 namespace api {
 
 // Dispatch events related to "sockets.udp" sockets from callback on native
 // socket instances. There is one instance per profile.
@@ skipping 60 matching lines @@
   // Usually IO thread (except for unit testing).
   content::BrowserThread::ID thread_id_;
   Profile* const profile_;
   scoped_refptr<SocketData> sockets_;
 };
 
 }  // namespace api
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SOCKETS_UDP_UDP_SOCKET_EVENT_DISPATCHER_H_